DeepCover Embedded Security in IoT: Public-key Secured Data Paths

Dependencies:   MaximInterface

The MAXREFDES155# is an internet-of-things (IoT) embedded-security reference design, built to authenticate and control a sensing node using elliptic-curve-based public-key cryptography with control and notification from a web server.

The hardware includes an ARM® mbed™ shield and attached sensor endpoint. The shield contains a DS2476 DeepCover® ECDSA/SHA-2 coprocessor, Wifi communication, LCD push-button controls, and status LEDs. The sensor endpoint is attached to the shield using a 300mm cable and contains a DS28C36 DeepCover ECDSA/SHA-2 authenticator, IR-thermal sensor, and aiming laser for the IR sensor. The MAXREFDES155# is equipped with a standard Arduino® form-factor shield connector for immediate testing using an mbed board such as the MAX32600MBED#. The combination of these two devices represent an IoT device. Communication to the web server is accomplished with the shield Wifi circuitry. Communication from the shield to the attached sensor module is accomplished over I2C . The sensor module represents an IoT endpoint that generates small data with a requirement for message authenticity/integrity and secure on/off operational control.

The design is hierarchical with each mbed platform and shield communicating data from the sensor node to a web server that maintains a centralized log and dispatches notifications as necessary. The simplicity of this design enables rapid integration into any star-topology IoT network to provide security with the low overhead and cost provided by the ECDSA-P256 asymmetric-key and SHA-256 symmetric-key algorithms.

More information about the MAXREFDES155# is available on the Maxim Integrated website.

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Files at revision 18:c2631e985780

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Bitmap.cpp 5331 Revisions Annotate
Bitmap.hpp 3908 Revisions Annotate
Button.cpp 2976 Revisions Annotate
Button.hpp 3147 Revisions Annotate
CC3100.cpp 18485 Revisions Annotate
CC3100.hpp 6181 Revisions Annotate
Display.cpp 3256 Revisions Annotate
Display.hpp 2653 Revisions Annotate
DisplayGraphicWindow.cpp 3160 Revisions Annotate
DisplayGraphicWindow.hpp 2598 Revisions Annotate
DisplayIdWindow.cpp 4164 Revisions Annotate
DisplayIdWindow.hpp 2648 Revisions Annotate
ErrorWindow.cpp 2061 Revisions Annotate
ErrorWindow.hpp 2443 Revisions Annotate
Factory.cpp 7801 Revisions Annotate
Factory.hpp 2489 Revisions Annotate
Graphic.cpp 7436 Revisions Annotate
Graphic.hpp 6214 Revisions Annotate
HardwareTestWindow.cpp 6422 Revisions Annotate
HardwareTestWindow.hpp 2470 Revisions Annotate
Image.cpp 2093 Revisions Annotate
Image.hpp 2257 Revisions Annotate
InitWindow.cpp 10953 Revisions Annotate
InitWindow.hpp 2815 Revisions Annotate
Keys.hpp 1947 Revisions Annotate
MakeFunction.hpp 2200 Revisions Annotate
NormalOperationWindow.cpp 25936 Revisions Annotate
NormalOperationWindow.hpp 4970 Revisions Annotate
Rectangle.cpp 2567 Revisions Annotate
Rectangle.hpp 2365 Revisions Annotate
SensorNode.cpp 7185 Revisions Annotate
SensorNode.hpp 4391 Revisions Annotate
Text.cpp 14082 Revisions Annotate
Text.hpp 3366 Revisions Annotate
WifiConnectWindow.cpp 5899 Revisions Annotate
WifiConnectWindow.hpp 2618 Revisions Annotate
Window.hpp 2437 Revisions Annotate
WindowManager.cpp 3709 Revisions Annotate
WindowManager.hpp 3104 Revisions Annotate
main.cpp 4659 Revisions Annotate